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Message: <blockquote data-quote="Suvin1122" data-source="post: 7941534" data-attributes="member: 177083">6<a href="http://www.oobject.com/tiniest-gadgets/smallest-refrigerator/275/" target="_blank">Smallest refrigerator</a><a href="http://www.livescience.com/imageoftheday/siod_050427.html" target="_blank"><img src="http://www.wists.com/thumbnails/6/e4/6e422bb10e34eed41542cbfed00e97af-orig" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a>Designed at NIST. These 25 by 15 micrometers refrigerators, are made by  sandwiching a standard metal, an insulator and a superconducting metal.  When a voltage is applied across, the hottest electrons burrow their way  from the metal through the insulator to the superconducting metal. The  temperature in the normal metal drops dramatically and drains extra heat  energy from the objects being cooled. They are not quite big enough to chill a mosquito’s six pack.</blockquote>

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